A negatively-charged balloon touching a wooden wall:
1. polarizes molecules in the wall.
2. pushes negative charge in the wall away from it.
3. pulls positive charge on the wall surface toward it.
4. all of the above

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

what does the table look like